net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
In the Linux kernel, the following vulnerability has been resolved: net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag This is more of a preventive patch to make the code more consistent and to prevent possible exploits that employ child qlen manipulations on qfq. use cl_is_active instead of relying on the child qdisc's qlen to determine class activation.
CVE-2026-23105
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-23105
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "462dbc9101acd38e92eda93c0726857517a24bbd",
"lessThan": "fac2c67bb2bb732eae4283e45fc338af7e08c254",
"versionType": "git"
},
{
"status": "affected",
"version": "462dbc9101acd38e92eda93c0726857517a24bbd",
"lessThan": "b8c24cf5268fb3bfb8d16324c3dbb985f698c835",
"versionType": "git"
},
{
"status": "affected",
"version": "462dbc9101acd38e92eda93c0726857517a24bbd",
"lessThan": "f27047abf7cac1b6f90c3ad60de21ef9f717c26d",
"versionType": "git"
},
{
"status": "affected",
"version": "462dbc9101acd38e92eda93c0726857517a24bbd",
"lessThan": "93b8635974fb050c43d07e35e5edfe6e685ca28a",
"versionType": "git"
},
{
"status": "affected",
"version": "462dbc9101acd38e92eda93c0726857517a24bbd",
"lessThan": "abd9fc26ea577561a5ef6241a1b058755ffdad0c",
"versionType": "git"
},
{
"status": "affected",
"version": "462dbc9101acd38e92eda93c0726857517a24bbd",
"lessThan": "77f1afd0bb4d5da95236f6114e6d0dfcde187ff6",
"versionType": "git"
},
{
"status": "affected",
"version": "462dbc9101acd38e92eda93c0726857517a24bbd",
"lessThan": "d837fbee92453fbb829f950c8e7cf76207d73f33",
"versionType": "git"
}
],
"programFiles": [
"net/sched/sch_qfq.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.249",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.199",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.162",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.122",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.68",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.8",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/sched/sch_qfq.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23105
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39754 · Revision 1
- Added to Heist Feed
- Publisher date